Home / 49,974.09-74,981.91-21,879.68

Finding the Fourth Proportional to 49,974.09, 74,981.91 and 21,879.68

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Solution

The fourth proportional to 49,974.09, 74,981.91 and 21,879.68 is: 32,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,974.09 : 74,981.91 = 21,879.68 : x
  2. Step 2: Convert to fraction form
    49,974.09/74,981.91 = 21,879.68/x
  3. Step 3: Cross multiply
    49,974.09x = 74,981.91 × 21,879.68
  4. Step 4: Simplify right side
    49,974.09x = 1,640,580,196.59
  5. Step 5: Solve for x
    x = 1,640,580,196.59/49,974.09
  6. Step 6: Final answer
    x = 32,828.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.